JP2001351165A - Automatic ejection device of box unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely feed a box unit at the lowermost position by a feeder even when quantity of piled box units is increased and weight of individual box unit is increased. SOLUTION: This automatic ejection device of the box unit is constituted of a loading platform to load the box units piled in the vertical direction, the feeder to transfer the box unit at the lowermost position in the horizontal direction and to eject it, a lift device to be engaged in the box unit at a position higher than that of the box unit at the lowermost part and to lift the box unit upward and a controller to instruct an ejecting operation to the feeder while the lift device lifts the box unit.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in an automatic discharging device that automatically discharges the lowermost box-shaped body of a stacking section in which box-shaped bodies containing CDs and FDs are stacked. In particular, the present invention relates to an automatic box-shaped body discharging apparatus capable of storing a large amount of box-shaped bodies and reliably discharging the lowermost box-shaped body.

[0002]

2. Description of the Related Art An automatic discharging apparatus of this kind is disclosed in
-81535 (JAPAN Publication Number: 0508153
5) is known. This includes a storage column for loading a product, for example, a box, a loading table on which the boxes are stacked, a delivery device for pushing out the lowermost box on the loading table, and a box immediately below the lowermost box. And a holding device for pressing and holding the upper box-shaped body against the storage column.

In this apparatus, a feeding device is operated in a state in which a box-shaped body on a lowermost box-shaped body is pressed against a storage column by a holding device so that the box-shaped body is not moved downward by a frictional force. Extrude the box. As a result, the frictional force at the time of pushing out the lowermost box-like body with the total weight of the stacked box-like bodies being added becomes extremely large, so that the box-like body cannot be sent out or the box-like body is deformed. It is intended to prevent that.

[0004] However, in this device, the stacked box-like bodies are held by the holding device while the total weight is added so as not to move downward. That is, the lowermost box-shaped body is in contact with the loading table and the box-shaped body immediately above, with the total weight substantially added thereto.

For this reason, when the amount of the box-shaped body is increased or the weight of the individual box-shaped body is increased and the weight of the stacked box-shaped body is increased as a result, the loading table and the lowermost box-shaped body are increased. , And the weight of the box-shaped body between the lowermost box-shaped body and the box-shaped body above the box-shaped body, increases the frictional force, which causes a problem that the box cannot be pushed out by the feeding device.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to ensure that even when the amount of a box-shaped body is increased or the weight of an individual box-shaped body is increased, it can be reliably discharged by a feeding device. It is to be.

[0007]

In order to achieve this object, the present invention has the following arrangement. A loading table on which a box-shaped body is stacked vertically and a delivery device for moving the lowermost box-shaped body on the loading table in the horizontal direction and discharging the same, and a lowermost box-shaped body. An automatic box-shaped body discharging apparatus comprising: a lifting device that engages with a higher-order box-shaped body and lifts the box-shaped body upward; and a control device that instructs a feeding device to perform a discharging operation while the lifting device lifts the box-shaped body. It is.

With this configuration, when discharging the lowermost box, the uppermost box is lifted, and the number of boxes mounted on the lowermost box is reduced. Since it is possible, the weight of the upper box-like body added to the lowermost box-like body is greatly reduced.

Thus, the frictional force due to the weight of the box between the loading table and the lowermost box and between the lowermost box and the upper box is significantly reduced. As a result, it can be reliably pushed out by the feeding device.

[0010] Preferably, the lift device has a pair of lift mechanisms that move the box-shaped body upward while sandwiching the box-shaped body from the left and right. With such a configuration, the box-shaped body is sandwiched from the left and right and moves upward, so that the box-shaped body can be reliably lifted.

[0011] More preferably, the pair of lift mechanisms are driven from one drive source via a link member. As described above, if there is one driving source, the configuration can be simplified because it can be inexpensive and does not need to be synchronized.

Still preferably, a sensor is provided for detecting discharge of the box-shaped body and outputting a payout completion signal, and the control device outputs a lift release signal to the lift device after receiving the payout completion signal. . Thus, after the payout is completed, the total weight of the many box-shaped bodies is added to the new lowest box-shaped body, so that the box-shaped bodies can be reliably discharged.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a thin box-shaped automatic ejecting apparatus for accommodating a CD will be described below.

FIG. 1 is an overall perspective view of an embodiment. FIG. 2 is a front view of the embodiment. FIG. 3 is a sectional view taken along line XX of FIG. FIG. 4 is a perspective view of the lift device of the embodiment. FIG. 5 is a front view of the lift device of the embodiment. FIG. 6 is a right side view of the lift device according to the embodiment. FIG. 7 is a left side view of the lift device according to the embodiment. FIG. 8 is an operation explanatory view of the lift device of the embodiment. FIG. 9 is a block diagram of a control device according to the embodiment.
FIG. 10 is a flowchart of the embodiment.

Reference numerals 1R and 1L denote rectangular side plates which stand vertically with a space therebetween and are fixed by screws or the like with a rectangular bottom plate 2 interposed between lower ends to form a U-shaped frame 3. . A flat sliding plate 4L is fixed horizontally above the side plate 1R so as to protrude toward the side plate 1L. A flat slide plate 4R is fixed to the upper part of the side plate 1R in a horizontal state so as to protrude toward the side plate 1L.

The sliding plates 4L and 4R are located in the same plane parallel to the bottom plate 2 and are placed horizontally. These sliding plates 4L and 4R constitute a loading table D. Sliding plates 4L and 4
There is a gap S between the leading ends of the R, and a pusher 14 of the feeding device 10 described later reciprocates in the gap S. A guide plate 5L is fixed to the side plate 1L at an interval below the sliding plate 4L. In addition, a guide plate 5R is fixed to the side plate 1R at an interval below the sliding plate 4R.

A second guide plate 6L, which is arranged with a slight gap below the guide plate 5L, is fixed to the side plate 1L. A second guide plate 6R, which is arranged at a slight distance below the guide plate 5R, is fixed to the side plate 1R.

A gap T is also provided between the leading ends of the guide plates 5L and 5R, and a slider 12 of the feeding device 10 described later is located. A gap U is also provided between the distal ends of the second guide plates 6L, 6L, so that a rack 16 of the slider 12 described below is located.

As shown in FIG. 2, the delivery device 10 can slide both ends of the convex shape into the gap between the guide plate 5L and the second guide plate 6L and into the gap between the guide plate 5R and the second guide plate 6R. And a pusher 1 pivotally attached to the rear end of the protrusion of the slider 12 by a pin 13 and urged clockwise by a spring (not shown in FIG. 3).
4 and the slider 12
, A drive gear 15 meshing with the rack 16, a speed reducer 18 having a shaft 17 to which the drive gear 15 is fixed, and a motor 19 for driving the speed reducer 18 And

The speed reducer 18 includes a bracket 18 on the side plate 1L.
It is fixed at L. The motor 19 is fixed to the speed reducer 18. Reference numeral 11 denotes a U-shaped guide pipe for guiding the flexible rack 16, which is fixed to the bottom plate 2.

The delivery device 10 comprises side plates 1L and 1R.
And in the space S between them. In FIG. 3, F is a sensor that detects that the slider 12 fixed to a stay (not shown) projecting from the side plate 1L is located at the most advanced position. B is a sensor fixed to a stay (not shown) protruding from the side plate 1L and detecting that the slider 12 is located at the last retreat position.

Reference numeral 20 denotes a gate plate which is a sliding plate 4L, 4
Above R, both ends are bent to form a side plate 1L.
And a screw which penetrates vertically long holes 21L and 21R of 1R to adjust the position in the vertical direction and fix it. G is a gate defined by the sliding plates 4L, 4R and the gate plate 20 so that the vertical interval is slightly larger than the box C, and only the lowermost box C can pass through. Reference numeral 22 denotes a holding plate, which has three claws 23A, 23B, 2
The polyurethane anti-return plate 23 with the 3C protruding is sandwiched and fixed between the gate plate 20 and the gate.

That is, the bolts 24L, 24R projecting laterally from the gate plate 20 penetrate through the holding plate 22, and are pressed against the gate plate 20 by the wing nuts 26L, 26R. The upper part is fixed. The return preventing plate 23 is bent when the tips of the claws 23A, 23B, and 23C contact the box-shaped body C passing through the gate G. The box C is dragged when the box C attempts to return into the frame 3 to increase the frictional resistance and prevent the box C from returning.

Reference numeral 30 denotes a box-like body storage frame formed by bending a plate-like body and forming a rectangular groove in cross section by the side walls 30L and 30R and the back wall 30B. That is, the groove is inserted between the side plates 1L and 1R in a state where the groove is vertically provided, and the side plates 1L and 1R are inserted.
Side walls 30L and 30R are fixed to 1R with bolts or the like (not shown). Reference numeral 31 denotes a lid that closes the groove opening 32 of the storage frame 30.

It is preferable to adopt a known mounting structure so that the lid 31 can be attached to and detached from the storage frame 30 with one touch. The box storage section 33 surrounded by the side walls 30L and 30R, the back wall 30B, and the lid 31 is a box-shaped body C stored therein.
Although it is movable in the longitudinal direction (vertical direction), it is set to a size that allows little movement in the lateral direction. The resin box C containing the CD is the cover 3
1 is removed and inserted into the storage frame 30 through the opening 32 and stacked on the slide plates 4L and 4R as the loading table D.

Next, the lift device 40 will be described. 41
L and 41R are lift mechanisms, which are sliding plates 4L and 4R.
Are respectively symmetrically fixed to the side walls 30L and 30R of the storage frame 30 immediately above. Lift mechanism 41L, 41R
Have the same structure, therefore, the structure of the right lift mechanism 41R will be described as a representative, and the same parts of the left lift mechanism 41L will be denoted by the same reference characters with R instead of L, and description thereof will be omitted.

Reference numeral 42R denotes a support, which is formed by cutting the plate into a section U.
The base 43R is bent in a letter shape, and flanges 44R and 45R are formed at right angles to the base 43R. Also,
A window 46R is perforated in the base 43R. This window 46R
An opening OR is formed in the side wall 30R opposite to.

The positions of the windows 46R and the openings OR are 5.6 in the state where the box-shaped bodies C are stacked from the position of the lowermost box-shaped body C. Flange 44R, 45R
Has a first shaft 47R fixed thereto. This first shaft 4
A swing lever 48R formed in a channel shape is pivotally connected to 7R. That is, at predetermined intervals, the windows 4
The intermediate between the arms 49R and 50R extending to the 6R side is the first shaft 47.
Connected to R.

A second shaft 51R is non-rotatably fixed to the distal ends of the arms 49R and 50R of the swing lever 48R. The cylindrical body 54R has a ring-shaped guide groove 52R around the periphery and a rubber ring 53R tightly fixed adjacent to the guide groove 52R.
Having.

The cylindrical body 55R is similarly provided with a guide groove 56.
R and a rubber ring 57R. These cylindrical bodies 54R
And 55R are non-rotatably fitted to the second shaft 51R. The rubber rings 53R and 57R are provided with a swing lever 48R.
When it turns to the side wall 30R side, it protrudes from the opening OR to the box housing portion 33.

Reference numeral 58R denotes a sliding body formed in a U-shaped cross section by a sliding base 59R and sliding flanges 60R and 61R bent subsequently. Sliding flanges 60R and 61R
In the long holes 62R and 63R formed in the vertical direction,
A third shaft 65R fixed to the flanges 44R and 45R penetrates. U-shaped grooves 66R and 67R, which are long in the horizontal direction and open on the window 46R side, are formed at the upper ends of the sliding flanges 60R and 61R, respectively.

The U-shaped groove 66R is inserted into the guide groove 52R of the tubular body 54R. Similarly, the U-shaped groove 67R is inserted into the guide groove 56R of the tubular body 55R. Thereby, the sliding flanges 60R and 61R are connected to the guide grooves 52R and 5R.
6R, the position of the sliding body 58R in the left-right direction in FIG. 6 is regulated.

A vertically long slot 70R is formed below the window 46R of the support 42R. A distal end of a pivot pin 72R is slidably fitted into the elongated hole 70R at the lower end of the sliding base 59R at the upper end of the link member 71R.

The lower end of the link member 71R is connected to the side plate 1L,
A lever 75R fixed to a swing shaft 73 supported reciprocally rotatable on 1R is pivotally connected to the tip of a lever 74R by a pin 75R.

A V-shaped lever 76 is fixed to the swing shaft 73. A cam follower 77 is attached to the tip of one arm 76A of the V-shaped lever 76 so as to contact an eccentric cam 78. That is, the arm 6A of the V-shaped lever
4 is urged in a counterclockwise direction in FIG. 4 by a spring 84 locked at one end to a bracket 83 erected from the bottom plate 2.

It is convenient for the eccentric cam 78 to have a predetermined range of the long diameter portion having the same radius from the rotation axis.
That is, the eccentric cam 78 is not rotated by the pressing force of the cam follower 77.

The eccentric cam 78 is fixed to an output shaft 79D of a speed reducer 79 driven by a motor 80. The speed reducer 79 is fixed to the side plate 1R by a bracket 85. The motor 80 is fixed to the speed reducer 79.

Reference numerals 81U and 81L denote sensors, which are fixed to a bracket 82 side by side in the vertical direction. The bracket 82 is fixed to the bottom plate 2. Arm 7 of V-shaped lever 76
6B are located at the top dead center and the bottom dead center.
U, 81L. The sensor 81U is connected to the arm 76
When B is detected, a lifting signal u is output. Sensor 81
When L detects the arm 76B, it outputs a release signal l.

Next, the payout completion detecting device 90 will be described. Shaft 9 with both ends pivotally attached to side plates 1L and 1R
1, a lower end portion is fixed to the shaft 91, an upper end portion is fixed to a driven lever 92 protruding in the movement path of the slider 12, and a lower end portion is fixed to an outer end portion of the side plate 1L, 1R of the shaft 91 protruding outward. , Levers 93R and 93L respectively having pins 94R and 94L protruding outward at upper end portions, and arms 95R and 95L.
And an engaging arm 95C, the arm 95R
And a detection member 95 having its rear end pivotally attached to shafts 96R, 96L projecting outward from the side walls 1L, 1R.
And a sensor 98 for detecting the position of the detection member 95.

Reference numeral 99 denotes an angle-shaped action piece fixed to the driven lever 92. The sensor 98 detects the lever 92 to detect the position of the detection member 95. The driven lever 92 is urged clockwise in FIG. 3 by a spring 110 having one end locked to the frame 3.

Cam grooves 97 formed on the arms 95R and 95L
R and 97L (97L is not shown) have the same shape, and pins 94R and 94L at the distal ends of the levers 93R and 93L are inserted. The sensor 98 is connected to the side wall 1 via the bracket BR.
It is fixed to A. The frame 3 and the storage frame 30 are stored in the housing of the vending machine, and the box-shaped body C discharged from the gate G is paid out to the product supply port of the vending machine.

Next, the control device 100 will be described with reference to FIG. The control device 100 includes sensors F, B, 81U, 81
Interface 101, CPU 102, R for receiving signals from L and 98 and payout signal p as an instruction signal
It comprises an interface 103 for outputting a rotation / stop signal to the control circuit of the AM 103, the ROM 104, and the motors 19 and 80. The sensors F, B, 81U, and 81U are stored in a later-described flowchart stored in the ROM 104.
The operation of the motors 19 and 80 is controlled based on the signals from L and 98.

Next, the operation will be described. First, the standby state will be described. As shown by the solid line in FIG. 3, the delivery device 10 has the slider 12 stopped at the rearmost position (the rightmost position in the figure). The pusher 14 is rotated clockwise by a spring (not shown) and is in a state of protruding above the slider 12.

The lowermost box-shaped body C is mounted on the slide plates 4L and 4R as the loading table D. The lift device 40 is located at a position where the cam follower 77 faces the short diameter portion of the cam 78. As a result, the lever 74L is in a state of being rotated clockwise as shown in FIG.
Is in a state of being turned in the most counterclockwise direction as shown in FIG.

Therefore, the link members 71R and 71L are pulled down, and the sliding members 58R and 58L are pulled down via the pins 72R and 72L. The state of the sliding members 58R and 58L during movement will be described using the sliding member 58R as a representative.

The third shaft 65R has sliding flanges 60R and 6R.
Since the sliding body 58R moves while being in contact with the flat base 43R of the support body 42R, the sliding body 58R is penetrated through the long holes 62R and 63R of the 1R, and even if a force separating from the base 43R is applied to the sliding body 58R, It is blocked by the third shaft 65R and moves along the base 43R.

Also, the sliding flange 60 of the sliding body 58R
R and 61R are the guide grooves 5 of the tubular bodies 54R and 55R, respectively.
Since the sliding member 58R is locked to the 2R and 56R, and the pin 72R moves in the long hole 70R in the vertical direction, the sliding body 58R is restricted from moving in the horizontal direction and the vertical direction with respect to the plane of FIG. To move up and down. Sliding body 58
L also moves in the up and down direction while being regulated similarly to the sliding body 58R.

In the standby state, since the sliding member 58R is at the lowermost position, the tubular members 54R and 55R are also pulled down, and the swing lever 48R is moved to the first shaft 4 in FIGS.
It is located at a position that has been turned in the most counterclockwise direction around 7R.
For this reason, the rubber rings 53R, 57R fitted to the cylindrical bodies 54R, 55R are opened from the inside of the box housing portion 33 by the opening OR.
It is in a position retracted to the side.

Similarly, in the lift mechanism 41L, the cylindrical member 54
L and 55L are pulled down, and the swing lever 48L is at a position where it has been turned clockwise about the first shaft 47L in FIG.

For this reason, the rubber rings 53L, 57L fitted to the cylindrical bodies 54L, 55L are
In the opening OL side. This state is
The box-shaped member C is formed by the rubber rings 53R and 57R of the lift mechanism 41R and the rubber rings 53L and 57L of the lift mechanism 41L.
In a state in which it is not held.

The payout completion detecting device 90 includes a lever 92
Are not engaged with the slider 12, the spring 11
In FIG. 3, it is in the position rotated in the clockwise direction in FIG. 3 (the position shown by the solid line). As a result, the lever 9 is
3R and 93L are also at positions rotated in the clockwise direction.

The pins 94R, 94 of the levers 93R, 93L
L is the cam groove 97R, 97L of the arm 95R, 95L, respectively.
L, the detection member 95 rotates counterclockwise in FIG. 1, and the engagement arm 95 </ b> C is located on the horizontal extension of the gate G. In this state, even if the device is inserted from the merchandise outlet of the vending machine, the engagement arm 95C disturbs and cannot reach the gate G, so that the box C has a stolen safety function.

Next, the operation when the payout signal of the box C is issued will be described with reference to the flowchart of FIG. In step S1, the input of the payout signal p of the box C is determined. If the payout signal p is not input, the determination state is continued. That is, it is in the standby state described above.

When the payout signal p is output, the process proceeds to step S2, where a rotation signal of the motor 80 is given to the motor 80 via the interface 105. Motor 80
Receives the rotation signal and starts rotating. When the motor 80 rotates, the speed reducer 79 rotates the eccentric cam 78 at a low speed. By the rotation of the eccentric cam 78, the cam major diameter portion comes into contact with the cam follower 77.

As a result, the V-shaped lever 76 is moved from the position shown in FIGS.
Is rotated counterclockwise from the state of FIG. Therefore,
The lever 74R is turned counterclockwise in FIG. 6 and the lever 74L is turned clockwise in FIG. 7 via the swing shaft 73.

By this rotation, the link members 71R, 71L are pushed upward via the pins 75R, 75L. The link member 71R includes a pin 72R, a sliding base 59,
Cylindrical members 54R, 5R via sliding flanges 60R, 61R.
Push 5R upward. This push-up causes the arms 49R and 50R to rotate clockwise in FIG. 8 about the first shaft 47R via the second shaft 51R.

By this rotation, the second shaft 51R turns from the lower position to the horizontal position with respect to the first shaft 47R.
As a result, the rubber rings 53R and 57R move upward while protruding into the box housing portion 33 from the opening OR. . This movement is based on the U-shaped grooves 66R of the sliding flanges 60R and 61R.
67R is allowable because it has a horizontally long groove shape.

On the other hand, the link 71L is connected to the cylindrical member 5 via the pin 72L, the sliding base 59, and the sliding flanges 60L and 61L.
4L and 55L are pushed up. By this pushing up, the arms 49L and 50L rotate counterclockwise in FIG. 5 around the first shaft 47L via the second shaft 51L.

By this rotation, the second shaft 51L rotates from the lower position to the horizontal position with respect to the first shaft 47L.
As a result, the rubber rings 53L and 57L move upward while protruding into the box housing portion 33 from the opening OL.

The rubber ring 53 of these lift mechanisms 41R
R, 57R and the rubber rings 53L and 57L of the lift mechanism 41L protrude into the box-shaped body storage portion 33, so that the box-shaped body C
And hold it. Further, by rotating from the lower position to the horizontal position, the held box-shaped body C and a large number of box-shaped bodies C stacked thereon are lifted. As a result, the number of the box-shaped bodies C that add weight to the lowest box-shaped body C on the sliding plates 4L and 4R is reduced to about four or five.

At this point, the V-shaped lever 7
The sensor 81U detects the lever 76A of No. 6 and outputs a signal u. In step S3, when the presence of the signal u is determined, the process proceeds to step 4, where the rotation of the motor 80 is stopped. Due to this stop, the lift mechanisms 41R and 41L continue to hold the box-shaped body C and lift it.

Next, in step S5, the motor 19 is rotated forward. The forward rotation of the motor 19 causes the drive gear 15
Is rotated at a slow speed in the counterclockwise direction in FIG. 3 to move the slider 12 to the left via the rack 16. In this movement process, the pusher 14 engages with the back wall of the lowermost box-shaped body C and slides on the sliding plates 4A, 4B to the position indicated by the dotted line of the pusher to push out the box-shaped body C.

As a result, the lowermost box-shaped body C and the plurality of box-shaped bodies C placed thereon attempt to move to the gate G side, but the box-shaped body C placed on the upper side is moved to the gate plate. Only the lowermost box-shaped body C protrudes from the gate G by about half of the entire length, being prevented from moving by 20.

At this time, since the number of the box-shaped bodies C placed on the lowest-order box-shaped body C is about four or five, the weight added to the lowest-order box-shaped body C is small. Therefore, the sliding plates 4A, 4B
And the lowermost box-shaped body C, and the frictional force between the lowest-ordered box-shaped body C and the box-shaped body C thereon are extremely small, and can be pushed out with a small force.

The slider 12 engages with the lever 92 during the movement, and rotates counterclockwise in FIG. This allows the levers 93R, 9
3L is rotated counterclockwise, and the pins 94R and 94L are rotated.
Makes a circular motion.

By the combination of the circular motion and the shapes of the cam grooves 94R and 94L, the detecting member 95 is moved to the shaft 96R96.
1 and 3 around L, the engagement arm 95C is disengaged from the extension of the gate G.

Thus, the box C pushed out by the pusher 14 projects beyond the engagement arm 95C.
Then, the interlocking lever 99 comes off the sensor 98.

When the pusher 14 reaches the position indicated by the dotted line, the sensor F which has detected this outputs a signal f. Step S
In step 6, when the signal f is received, the process proceeds to step S7, and the normal rotation of the motor 19 is stopped.

Next, in step S8, the motor 19 is driven to rotate in the reverse direction. As a result, the drive gear 15 rotates clockwise in FIG. 3, and the rack 16 is pulled to the right. As the rack 16 is pulled, the slider 12 also moves to the right,
The position shown by the solid line in FIG. 3 is reached. The sensor B that has detected the slider 12 outputs a signal b.

In step S9, when the signal b is received, the process proceeds to step S10, and the rotation of the motor 19 is stopped. In the process of moving the slider 12 rightward in FIG. 3, the engagement with the lever 92 is released.

With this release, the lever 92 is rotated clockwise by the spring 110 to the state shown in the figure. Therefore, the pins 94R, 9 of the levers 93R, 93C
4L does not support the engagement arm 95C, so that the detection member 95
Rotates counterclockwise in FIG. 1 with its own moment about the shafts 96R and 96L.

The rotation of the engagement arm 95C is stopped by the box-shaped body C projecting from the gate G. Therefore, the driven lever 92 cannot rotate to the position shown by the solid line in FIG. Therefore, the action piece 99 is
Is located outside the detection range. Next, in step 11, the output of the payout completion signal k from the sensor 98 is waited.

The purchaser pulls out the merchandise payout port, that is, the box C protruding from the gate G, and receives it. When the lowermost box-shaped body C is pulled out, the box-shaped body C on the lowermost box-shaped body C is located on the slides 4A and 4B.

When the box-shaped body C protruding from the gate G is pulled out, the engaging arm 95 is no longer supported, so that the driven lever 92 is further rotated in the counterclockwise direction by the self-moment by the rotation of the spring 110. At the position in front of the gate G and continues at that position (the position shown by the solid line in FIG. 3).

As a result, the sensor 98 detects the action piece 99 and outputs the payout completion signal k. Upon receiving the payout completion signal k, the process proceeds to step 12, where the motor 80
To rotate.

The rotation of the motor 80 causes the eccentric cam 78 to rotate.
The contact portion with the cam follower 77 moves from the long diameter portion to the short diameter portion. As a result, the lever 76 is
3, the pivot shaft 73, the lever 74R, the pin 72R, and the link 71R are pulled down.

In the lift mechanism 41R, the sliding body 58R is pulled down, and the second shaft 51R is also pulled down via the tubular bodies 54R and 55R. Swing lever 48R
Is rotated counterclockwise in FIGS. 5 and 8, the second shaft 51R, and hence the rubber rings 53R, 5R,
7R retracts from the box-shaped body storage portion 33 while moving downward.

Similarly, the rubber ring 5 is also used for the lift mechanism 41L.
3L and 57L are retracted from the box-shaped body storage portion 33 while moving downward. As a result, the holding force between the rubber rings 53R, 57R and the rubber rings 53L, 57L gradually decreases,
When the stacking weight of the box C exceeds the holding force, the box C falls onto the box C below. That is, the lift of the box C is released.

Then, the cam follower 77 is
8 comes into contact with the short diameter portion of the sensor 8L, the sensor 81L
And outputs a signal l.

In step S13, when the signal 1 is received, the process proceeds to step S14, in which the motor 80 is stopped.
In this step 14, predetermined steps are completed, and the apparatus enters a standby state. This state is maintained until the next payout signal p is input.

The following changes are possible within the scope of the technical concept of the present invention. The delivery device 10 may be a delivery roller system or a belt system exposed on the sliding surfaces 4A and 4B, in addition to the pusher system of the embodiment. Also,
A type in which the lowermost box-shaped body is entirely pushed out from the gate G may be used.

The lift device 40 is, in addition to the friction type of the embodiment,
A forklift system in which a fork is inserted between box-like bodies and lifted may be used.

Further, the lifting device 40 does not have to completely lift the upper box-like body from the lower box-like body, but may lift it so as to reduce the added weight. In this case, only one side of the box-shaped body may be lifted, and the other side may be placed on the lower box-shaped body.

Further, the payout completion sensor may directly detect the presence or absence of the box-shaped body by using an optical sensor in addition to the box-shaped body engaging system of the embodiment.

[0084]

[Brief description of the drawings]

 FIG. 1 is an overall perspective view of an embodiment. FIG. 2 is a front view of the embodiment. FIG. 3 is a sectional view taken along line XX of FIG. FIG. 4 is a perspective view of the lift device of the embodiment. FIG. 5 is a front view of the lift device of the embodiment. FIG. 6 is a right side view of the lift device according to the embodiment. FIG. 7 is a left side view of the lift device according to the embodiment. FIG. 8 is an operation explanatory view of the lift device of the embodiment. FIG. 9 is a block diagram of a control device according to the embodiment. FIG. 10 is a flowchart of the embodiment.

[Explanation of symbols]

 C Box-shaped body D Loading table 10 Feeding device 40 Lifting device 41L, 41R Lifting mechanism 71R, 71L Link member 78 Eccentric cam 98 Discharge completion sensor 100 Control device

Claims (4)

[Claims] 1. A loading table on which a vertically stacked box-shaped body is mounted, a delivery device for moving a lowermost box-shaped body in a horizontal direction and discharging the same, and a higher-order box than the lowermost box-shaped body. An automatic box-shaped body discharging device comprising: a lifting device that engages with a box-shaped body and lifts the box-shaped body upward; and a control device that instructs a delivery device to perform a discharging operation while the lifting device lifts the box-shaped body. 2. The apparatus according to claim 1, wherein the lifting device includes a pair of lift mechanisms that move the box-shaped body upward while sandwiching the box-shaped body from left and right. 3. The pair of lift mechanisms are driven from one drive source via a link member.
2. The automatic discharging device for a box-shaped body according to 1.). 4. A sensor for detecting discharge of a box-shaped body and outputting a payout completion signal, wherein the control device outputs a lift release signal to a lift device after receiving the payout completion signal. Item 4. An automatic discharging device for a box-shaped body according to any one of Items 1 to 3.